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中国辽西早白垩世义县组始无齿翼龙新材料
引用本文:吕君昌,高春玲,刘金远,孟庆金,季强.中国辽西早白垩世义县组始无齿翼龙新材料[J].地质通报,2006,25(5):65-571.
作者姓名:吕君昌  高春玲  刘金远  孟庆金  季强
作者单位:1. 中国地质科学院地质研究所,北京,100037
2. 大连自然博物馆,辽宁,大连,116023
基金项目:国家重点基础研究发展计划(973计划),the China Geological Survey
摘    要:根据新材料,对始无齿翼龙的特征进行了修订:中部颈椎体没有神经棘;肱骨三角嵴的长度与肱骨长度之比率约为0.25;翼掌骨的长度与第二翼指骨的长度几乎相等;第二翼指骨与第一翼指骨的长度之比率约为0.76.始无齿翼龙的新标本与正型稍微不同,可能由个体发育所引起.

关 键 词:辽宁北票地区  义县组  早白垩世  始无齿翼龙  无齿翼龙科
文章编号:1671-2552(2006)05-0565-07
收稿时间:2006-02-15
修稿时间:2006-02-152006-04-21

New material of the pterosaur Eopteranodon from the Early Cretaceous Yixian Formation, western Liaoning, China
L.New material of the pterosaur Eopteranodon from the Early Cretaceous Yixian Formation, western Liaoning, China[J].Geologcal Bulletin OF China,2006,25(5):65-571.
Authors:L
Institution:Institute of Geology, Chinese Academy of Geological Sciences, Beijing 100037, China;Dalian Natural History Museum, Dalian 116023, Liaoning, China;Dalian Natural History Museum, Dalian 116023, Liaoning, China;Dalian Natural History Museum, Dalian 116023, L
Abstract:The diagnostic features of Eopteranodon are amended on the basis of new material. The amended features are as follows: the neural spines in the mid cervical vertebrae are absent; the ratio of the length of the deltopectoral crest to the humerus length is approximately 0.25; and the length of the metacarpal Ⅳ is almost equal to the length of the second wing phalange; the ratio of the length of wing phalange 2 to wing phalange 1 is approximately 0.76. The new specimen of Eopteranodon is slightly different from its holotype, probably due to ontogenetic development.
Keywords:Beipiao  Liaoning  Yixian Formation  Early Cretaceous  Eopteranodon  Pteranodontidae
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